Snubber



Oct. 30, 1928.

1,689,903 s. wlsE SNUBBER 2 Sheets-Sheet 1 Filed D60. 3, 1923 Oct. 30, 1928.

S. WISE SNUBBER Filed DBG. 3, 1925 2 Sheets-Sheet 2 v35 actuation of t-he friction shoes. I

Another object is tomiprovide means ,for limiting. the movement of thel friction shoes' Patented Oct." 30, 1928. i' I UNl'Tl-:osTATes VPa'rela'r'orner-:.1- y

SOLOMON WISE, OF CLEVELAND, OHIO.

sNUBBEn appncatiun med numbers, 1923.,` serial No. 678,274.

This invention relates to improvements in that class of devices known asfsnubbers, for useon automobilesand the likerfor` pre.

venting reboundof theyehicle body.` More ber, the wedge member inthe present aseL being centered about the stem which is secured to the lower telescoping member; furthermore to provide aseparate hollow, metal `wedge member, together with means for y suitably supporting `the wedge member; to provide, in one form of device, means for supporting the wedge member 4in floating arrangement between spiral springs, while in another form to support the wedge member directly upon the upper end of t-he lower telescoping member.

`Another object of the invention is topro- 3 vide means for adjusting the Vdevice so as w f to vary the action of the'fsnubber accord-l ing to existing conditions; and a still fur- Y ther obJect consistsfin providing means for limiting the ymovement of thefwedge in its in one direction, land at -the same time to utilize this same means for affording `a. seat '40 for thel wedge member upon the upper end of the lower telescoping member.

A further object is to provide an improved i universal jointl connection between thc snubber` at eachend,` vand the body frame l so as Vto automatically accommodate itsel to" the sidewise movement .ofV the vehicle" body. Other objects of the `invention will appear {from the following description and claims,

, when considered together with the drawings: i Fig. 1 isa vertical sectionrof one form of 2 vvmyimproved device;- Figs, 2, 3 and 4 are cross `sections taken on i lines 2-2, 3-3 and Y i tical section of another form `of device; and 5 Fig.` Gisa detail view ofl one of the friction Any suitable means may be employed :for securing the bracket arms 1 and 2 to the body frameV and the axle ofthe vehicle, for which reason these parts are .not herel i1- lustrated. t f i y The vpresent form of snubber as illus-H tratedin both Figs. -1 and 5 comprisesfthe inner and outer ,telescoping tubular membersfB and 4, between lwhich there isrprovid'-, ed for telescoping engagement the packing joint connection indicated by referencenumeral 5. The upper lendof the telescoping member 4 is closed by meansvof the` plug 6' which is fiXedly securedwithin -the'upper end thereof in any `suitable manner as for' instancey by a pin or` lby crimping. This plug 6 is provided with the, upwardly eX- tending s tem 7 which is screw threaded at its end portion 8. The crown or cap 9 extends down over the upper end portion ofthe tubular member 4 in -telescoping arrangement therewith` andV has seated upon its upper end the apertured arm 1 of the su vporting `bracket which" 'fits down overt e' stem` 7. The acorn nut :10 isscrewed down`r toifull limit asV a jam nut so as tosecureV these parts together, the'. underside of the nut being given, acurvature corresponding Y toy Vthat of the bracket arm 1.5111; this manf ner there is provided a universal connection,

the aperture in the arm 1 being sufficiently large to Vpermit universal play. whereby rthe joint automatically accommodates itself to Vthe side-wise movements of `the body 'of the 1 vehicle. Within the cap 9 there is provided the cor'nparatively strong coil spring 11 which surrounds the stem 7 and hasiablitting engagement at its ends with the top of thel plug and the cap 9 so as to maintainythe cap 9 and acorn nut l0inproper position against bracket arm 1, automatically taking up wear but providing-free universalmove lment.

The cap 9 as well as the single acorny nut 10 together give-also a neat appearance.

The lower lend of1 the inner telescoping member 3 is `closcdby me'ansofA the flanged lfm plug 12, the outer marginalportion of which n l is engaged by the crowncapl?) between which vand the plug 12 there is arranged the Vcomparatively Strong coil spring 14 inthe same manner and for the same,purpo`s`ej as described for't-heupperend of the"snubber. The jam nut l5a serves asa means of locking the stem V15V in adjusted position, as

will later appear.` The stem 15, to which reference will later be made,y has; screw` Y' thread Aengagenient through the plugl l2 and extends through an aperture in' the bottoni ol'l the cap 13 while the bracketv arin 2 engages` over the lower end ,ot the .stem l and is secured in position bv means ol' the, nuts 16. sulliciently large to permit universal play at this point in the samel manner as attlie upper id of the .siiubher, the lower por` tion ol `the cap i3 as well as the correspond` ing port-ion oi the arm l5 and the inner nut 1G being suit-ably curved so as to all'ord such universal connection.

Referring tiret to the forni shown in Fig. l, it will be seen that there reste upon the upper end of the telescopin'g member 23 the washer 18 which supports the coiiipafratively light coil 'spring 19. The spring 19 in turn Supports the washer 20 which engages the inset lip extension 21 of the inner metal portion :2:2 ot the 'lriction shoes, these shoes heilig laced on their outside with any suitalile Jfriction material as l'or instance chrome leather or brake lining secured to thc iiietal by means of sunken eyelets. Any suitable iiiiinbcr of such shoes ma)v he used7 three being here illustratci'l, and in the pres l' cnty case the metal portions of the shoes are stamped out ol sheet metal. The inwardly extending portions` 2l are formed by Shearing and pressing inwardli7 such shearcd por` tions as more clearly illustrated in Figs. t3. ll'ith this arrangement the shoes are always supported in proper operative position by means ot the spring lll and the sl'iouldci 2i, provided on each shoe by the. shearing and preseing operations, is as a result, maintained in Contact with the tapering wall 25 olE the wedge member. This wedge member, which is adapted to force the shoes outfwardltivv into binding engagement with the inner wall ot the telescoping iiieiiiher l, is here ioriiied as a hollow metal member and centered about the stem 15, with the reduced portion S26 in contact relation with the stein and with the larger portions 2T and QS spaced 'from the :item these last two named portions being connected bjv the tapering wedge portion 25. IBetween the portions 2o and 2i oi the wedge member there if; provided the annular shoulder Q9 which serves as a minnie, ot supporting the wedge, member upon the seat provided by the washer 18 and nervesl also as an abutment or hearing means tor the lower end ot the coil spring Si), while tbc upper end of this spring ahnte the washer 3l which is secured to the upper end oi' the stein l5 by having the extreme end portion thereof riveted over. or threaded thereto.

The lower end ol the stein 15 is slotted as indicated at 32 so as to permit the application of a screw driver for turning the .stein l l5 in order to adjust the snubber to better suit existing coi'iditions under which thel snubber "1s used. Lock nut l5 is prorided The aperture 1T in the arm 2 isf.

to maintain this adjustment. It will be oh- .Llerveil that :nach ai'justiiiciit 'may liz, cli'ectcd widiout ilisaseeiiilliii;Y :in v oi' the parte and it will he noted also that with a right liaiid thread oii the lowriI ciid of the stein l5 the i'rec'action ol' the, .siiuhbei"7 is increased by turning the stein to the right as vii-wed iii Fig. l. lflnch niiriiiicr ot adjustment. as lwill he clear li'oiii the drawings, serres` to relieve the, .epi-ing 33() so as to pci'iiiit the saine to lengthen out; and to increase the l'rcc 4.space hctvi'ecii the waslicril and the upper ends oi the friction shoes. In tliifi connection it should he no ed that iii deis-ing and designing the present forni ol' invention it is desirable to maintain suitable lree pace between the upper ends oll the friction shoes and the washer 3l so that the sliocis and wedge do noty operate when travelling over comparatively saniall ruts or bumps iii the road. ln li'ig. 5. l have provided washer 3l with a leather lacingl Ill which io adapted to he ciizgaged by the projectingl upper cnil portions ol' the leather facing` L'i :-o air lo coi'i,-=titute a cushioning iiicaiin and lo climiiiatgtappiiipl iioi;e when the #hoes reach the. cxtreme upper end ol nioiriiicnl. 'l`hcii by :id iueiiigr the .stein l?) to the left az; viewed in l1 ig. i. the free z-zpace between the upper ends ol the :shoes and thc waehci` ill may be reduced, but the degree ot hiiidiiir'iI action bctvi'ecn the sheen and the telescopiiig nicmhei remains the .s'aiiic rcgai'dlcsx ol' the length ot l'ice rapace. However, this device may be provided with means ol uiljuaiucnt in the manner dcigcrihcd below :so as to iill'ord the proper degree ol' snubbiiiiin action l'or preventing rebound oi the vehicle body according to the condition ol the road over which the automobile is being driven. This may bc aecoiiipiishcd b v iii:=eriii;g a conipai'aiivel); strong coil spring iii the sparc between the lined collar and waehi-r in in the .saine arrangement and with the saine inaniicr ol operation as dewcrihci'l below i'oi' the. torni ofdcvicc .Lliowii in Fig.

rllie nioditied t'oriii ofv device illustrated on Sheet 2 of the drawiiigs iii very similar to that Shown on Sheet 1 and except as herein pointed out liaS the same details ol striicture. lt should he explained that the lirst forni ol device hats been speciali)7 devised for use on certain light. autoiiiohiles. as for instance the Ford. whereas the second 'l'oiiii of device now to he referred to if; better adai'ted for usic upon a heavier car. In this ease the wedge iiieiiihcr is mounted in what. might be termed a floating arrangement b v virtue of the .spring 2J() engaging the Shoulder 2i) from above and the spring 3?, of iaibstantially the saine grade but dillcr# ent length engaging the washer 3l, on the underside ol the shoulder 2l? iiiid abutting at its: lower end the fixed collar li which has a drive lit iii the inner telcscopiiig iiieii'iber Sii liti

etl'ectonfthe spring 33 isat the same time` l 3.` The washer34..serves also inthe same manner` as does the washer 18 in the first form as a means ,of `supporting the spring 19 although in the second `form this ,Washer 34 is enclosed within the upper end portion ofthe telescopingr member 3 .which projectsA upwardly so as to partially surround thev spring 19. Viththisusecond -form-of arrangement: there is obtained `a composite or.`

combined action between Vthe springs and 33. `In other words, -upon adjustingl the stem to the right the spring`30 `will be per-` mitted tolengthenlout, `with the result that its *,tension i or `pressure Lupon the .shoulder 29 is somewhat relieved and consequentl the spring 33` is likewise relieved. .Suoi

transmitted lthrough the` washer 341to the springk 19. Then `upon adjustingthe stem 15-tojthe left, the spring 30 is compressed `and likewise the spring v33 Y: is also compressed. Thus theactual` wedging pressure against the friction shoes is equal to the comimnentforccaof the two springs 3() and 33 because plug 35 is a fixed member and the distancerbetween .plug 35 and washer 31a can beincreased.ordecreased atwill since the twosprings y30and` 33 are brought into play byadjusting stem 15.

. By vvirtue ofthe so called floating device there 'is made possible a positive means ofuvarying the `friction orl gripping action of the shoes; for example.; by screwing the stem 15 into the right the wedging pressure is increased, `also the' freev space betweentopof the shoes and washer 31 is increased. Conversely screwing the stem 1:5tof the left the wedging. pressureis dei `adjusting.foperation affects ,only the one springy 30 ,which bears againsta 'fixed seat atits lowerfend, merely. increasing or dei creasing the free spacebetween theftop of the and the top washer.

Th "operation .briefly Ldescribed as i follows downwardly and the shoes areat the same time-` maintained by t means. of the ,springs 19 i inproper contact with respect tothe wedge, face 25 so as to ber ready for immediate co;`

operation therewith to. prevent .rebound of .erdgifr arrangement shown m thesecond form ofl creased the i free space is also decreased. a Whereas inthe first`form` of device such i the vehicle body.` Such rebound l:is actually prevented upon upward movementvo-f theoutertelescoping membertas it would. tend to; dragwith it the'shoes which are immediately `forcedfradially outwardly'vas soon vas there is anytendency for the outer telescoping member to carry them upwardly. ...This

radial movement of .the 'shoes is, of. course,`

caused by the engagement betweenl the shoulders: 24 y,and the wedge surface 25. Such binding engagementbetween the `shoes and the outer telescopingr member is supplementediby'compression of spring 30. VvThis spring action is caused byengagementof the` shoulder 29 of the wedgewith the spring 30,` which is thereby compressed against the washer31`, and such movement will. continue until limited by Contact of the shoes with thev a washer onthe upper-end of the stem. The

operation of bothpforms of device as here` illustratedis the same except for: the addi? tional elements and their cooperationrwith.

the other parts as heretofore explained. a Having describedmy.invention I claim:

l. it device'Y of the character described,.

comprising telescopingiuembers adapted for attachment to thek axle and body `frame respectively of avehicleor thelike, a stem carried by one vof said members means adapted 4iorfrictional binding` engagement with the other :of said. members, and. wedge means separate from ,thejcstem Ai'or. automatif cally eti'ectingcoperation of said frict-ional v meansso as toprevent rebound ofthe vehicle body ,Y A a y n device l of l the described,` comprising telescopingV means adapted for attachment tothe `axle and, .b ody frame.

respectively of' aV vehicle orthelike, aste/nrA carried by'ione of said members, a plurality ot fri'ctlon shoes adapted torrbinding engagement with the other `of said members, and,

we dgef means separate from. said 4stem a fori automatically directing said shoes into bind?, c

ing engagement with said member so as to prevent rebound of the vvehicle body.- I

v device of.thefcharacterdescribed, comprising ,telescoping members adapted for attachment.V to ,the axle. "and,` body frame respectivelymof avehicle or the.V like, a steml carried by one. Vfof said' members, means adapted for fractional binding engagement with the other oi said members, and wedge means separate Afrom andsurrounding said stem for automatically effecting operation iio of said `friction .means so atto-*prevent re-I bound Offtlie vehicle bbdrA 4, A device of the character i,clescribed, I i comprising telescoping members vadapted for attachment A.to the axle and the rbodyk frame respectively `oa vehicle or the like, a` stem carriedbyfone ot said members, a plurality of. trictional shoesr adaptedgfqr .binding en- Y gagement with ythe other of saidmembers,

wedge,- meansafor automatically. directing;-

said shoes into Ybindingr engagement with said member so as to prevent rebound lof the vehicle body, and cushioning means for limiting the movement of said friction shoes.

5. A'device of the character described, coinprising telescoping means adapted for attachment to the axle and the body frame respectively of a vehicle or the like, means adapted for frictional binding engagement with a part of said 'telescoping means, means including a wedge for automatically eii'ecting operation ofsaid friction means so as to prevent rebound of the vehicle body, and springs cri-operating with said Wedge so as to constitute a floating arrangement therefor.

G. A device of the character described, comprising a telescoping means adapted for attachment to the axle `andthe body frame respectively of a vehicle or the like, means adapted `for frictionai binding engagement with a part of said telescoping means, means including a hollow wedge and springs aranged inside and voutside of said wedge for (ro-operation therewith so as to constitute a floating arrangement therefor, said wedge being adapted to automatically etlect operation of said friction means so as to prevent rebound of the vehicle body. t

7. A device of the character described, comprising telescoping means adapted for attachment to the axle and the body frame respectively of a vehicle or the like, a. stem carried by one of said members, means adapted for frictional binding engagement with the other of said members, wedge means separate from said stem and freely surroundlng the same for actuation of said friction means and spring means having cooperative engagement with the inside and outside of said Wedge means and also with said stem and the inner telescoping member, whereby said wedge means automatically effects operation of said friction means so as to prevent rebound ot the vehicle body.

8. A device of the character described, comprising telescoping members adapted for attachment to the axle and the body fra-me respectively of a vehicle or the like, a stem carried by one of said members, means adapted for fric/tional binding engagement with the other of said members, a hollow wedge separate from the stem and freely surrounding the same, spiral springs inside and outside of said wedge and surrounding said stem so as to constitute a floating arrangement of said wedge between said stem and the inner telescoping member, said parts being so constructed and arranged as to eii'ect operation ot said friction means so as to prevent rebound of the vehicle body.

D. A device of the character described, comprising telescoping means adapted for attachment to .the axle and the body frame respectively of a vehicle or the like, means adapted for .frictional binding engagement with a pant of said .telescoping means, scpa rate Wedge means 'for autolmitically etlccting operation ol said frictional means so as to prevent rebound of the vehicle body, and means for supporting said wedge means directly upon the end of said inner telescoping means.

l0. A device of the character described, comprisingr elescoping means ad: )lcd for attachment to the axle and the bo y frame respectively of a vehicle or the like, means adapted for frictional binding engagement with a part of said tclcscoping means, wedge means for automatically effecting operation of said frictional means so as to prevent rebound of the vehicle body, and means for support-ing said wedge means directly upon the end of the inner telescoping means, said last named means serving also to limit the movement of said frictional means in one direction.`

1l. A device of the character described, comprisinglelcscoping members adapted for attachment to the axle and the body frame respectively of a vehicle or the like, a stem carried by one of said members, means adapted for frictional binding cnfagcment with the other of said members, separate wedge means for actuation of said friction means, said wedge means surrounding said stem and having a shoulder, a washer adapted lo scat upon the end of the inner telescoping member and affording a seat for the shoulder olf said wedge means, said parts being so constructed and arranged as to automatically clfcct operation of said friction means and thereby prevent rebound ol the vehicle bed y l2. A device oi' the character described, comprising telcscoping members adapted for attachment to the axle and the body frame respectively of a vehicle or the like, a stem carried by one ol said members, means adapted for frictional binding engagement with the other of said menlbers, separate wedge means for actuation of said fricticmal means, said wedge means surrounding said stem and having a shoulder, a washer adapted to seat upon the end of the inner telescoping member and affording a scat for the shoulder of said wedge means and sprinff meansY tending normally to maintain said wedge means upon said seat1 said parts being so constructed and arranged as to automatically effect operation of said frictional means and thereby prevent rebound of the vehicle body.

13. A device of the character described, comprising telcscoping means adapted for attachment to the axle and the body frame respectively of a vehicle or the like, means adapted for frictional binding engagement with a part of said means, means for antomatically effecting operation of said frictional means so as to prevent rebound of the lll) lll)

vehicle body, and universal, connecting means `for attachmentof saidtelescoping means to the axle and the vehiclebody frame respec tively, said connecting means including the cap having telescopmg engagement with the end of a telescoping means, Aand means for maintaining said cap in position and for automaticall taking u Wear.

respectively of a vehicle or the like,'meansV adapted for frictional'` binding engagement with a part of said telescoping means, means for automatically effecting operation of said 'rictional means so as to prevent rebound of the vehicleV body, and universal connecting means for -attachment of said telescopingmeans to the axle and vehicle body frame respectively, said connecting means including a cap havin telescoping engage- `mentiwitl1 the endo a vtelescoping means,

y and spring means for maintaining said cap in position for automatically taking up wear.` i

` 15. A device of the character described, comprising telescoping means adapted for attachment to the axle and the body frame respectively of a `vehicle or the like, means adapted for frictional binding engagement with ,a part of said telcscoping means, means including a floatingwedge for autoiatically effecting operation of said friction means so as to prevent rebound'of the Vehicle body, and means for varying the Vbindinv action of said friction means.

16, device of the character described, comprising telescoping members adapted for attachmentto the axle and the body frame respectively of a vehicle or-the like, a stem carried by oneY oi'v said members, means `adapted for frictional binding engagement kiviththe other ot' said members, a hollow Wedge separate from said stein and freely surrounding the same, spiral springs inside and outside of said Wedge and sinfrounding said stem so as to constitute a floating arrangement of said Wedge between said stem and the inner telescoping member,v said parts being soconstrncted andarranged as to Veffeet operation of said frictional means so as to prevent rebound of the vehicle body, and means for adjusting said stem so as to vary thel combined action of the springs and thereby vary the gripping action of frictional means.

In vtestimony whereof hereby aiiix my signature.

soLoMoN WISE. 

